<form action="index.php?sendpassword=1"  method="POST">

<p>
           <label for="form_email" id="email">Adresse email : </label>
            <input type="text" name="email" id="form_mail">
</p>
<p>
        <label class="form_label_nostyle">&nbsp;</label>
        <input type="submit" name="submit">
</p>
</form>